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The lnhabitantsby Mavis A Hill
SUPPLEMENT Technical Notes Comments
12 other sections not shown
33 feet 60 feet actual bottom adjustable air supply air usage aluminum cylinders amount ascent blood body Boyle's law breath-holding breathing buckle buddy buoyancy buoyancy compensation carbon dioxide carbon monoxide clear color compression corrosion decompression stops decreases density depth gauge diaphragm diver diving tables entering environment equipment exhale Figure fins fish float foot free diving freshwater greater hand heat hose hypoxia inch increases inhaled kelp kick legs ln addition lobster lungs mask mechanical detonators mouthpiece neck neoprene neutrally buoyant nitrogen narcosis no-decompression limit normal occur ocean oral inflator oxygen partial pressure percent position pounds prevent psig pull purge button purge valve recreational diving regulator repetitive dive repetitive group reserve residual nitrogen respiration result SCUBA diving seawater Section snorkel species sport diving squeeze submerged surface interval swimming tank temperature tides tion tissues tube U.S. Navy underwater usually vest wave weight belt wet suit